Loading…
Loading…
| # | Company | Amount | Rank | Status |
|---|---|---|---|---|
| 1 | L1₹7.6 CrAccepted-AOC | ₹7.6 Cr Quoted ₹8.8 Cr | L1 | Accepted-AOC This contractor Quoted lowest value in rest of others. |
| 2 | L2₹9.2 Cr+₹45.5 L (5.20%)Rejected-Finance NO 1 40 LINGAGOUNDER VALASU POONDHURAI SEMOOR POST AVAL POONDURAI VIA ERODE 638115 | ERODE | TAMIL NADU | 638115 | ₹9.2 Cr+₹45.5 L (5.20%) | L2 | Rejected-Finance Due to L2 |
Tender Value
Refer Docs
EMD Value
₹7 L
Closing Date
20 Nov 2024, 12:00 pmClosed
Deputy Manager(civil)
MTC, Pallavan House, Chennai -2
Providing the additional facilities Fire hydrant system with RCC sump Crew rest room with toilet facility and lift provision for G with 2 flr buildings in Six various depots of MTC
2024_MTC_492367_1
41623/CIVIL/MTC/2024
Open Tender
Civil Works - Buildings
Item Rate
90 days
various six Depots of MTC at Chennai.
Please refer Tender Document.
2 documents required · 2 mandatory
₹0
₹7 L
20 Dec 2024
10 Oct 2024
20 Nov 2024
10 Oct 2024
20 Nov 2024
16 Oct 2024
Amount
Earthwork excavation for foundation (for narrow excavation) to full depth as per designed in all soils and sub soils except soft disintegrated rock not requiring blasting and hard rock requiring blasting and bailing water wherever necessary. Refilling the sides of foundation with excavated earth other than sand in layers of well rammed and compacted and depositing the surplus earth in places shown by the departmental officers with an initial lead of 10m and initial lift of 2m and clearing and leveling the site etc. complete complying with standard specification
Perambur
Tondiarpet 1
Vysarpadi
Poonamallee
Perumbakkam
K.K.nagar
Supplying and filling in foundation and basement with M sand/ Filling sand in layers of not more than 15cm thick well watered, rammed and consolidated etc., complete as per standard specification.
Perambur
Tondiarpet 1
Vysarpadi
Poonamallee
Perumbakkam
K.K.nagar
Providing and laying in position, Standardised Concrete Mix M-20 Grade in accordance with IS:456-2000, using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 325 kg/mᶾ and maximum water cement ratio of 0.55, including admixture (plasticiser / super plasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5 cu.m.) 7730 kg. of 20mm machine crushed stone jelly and with about (3.3 cu.m.) 5156 kg. of 10-12mm machine crushed stone jelly and with about (4.79 cu.m.) 7670 kg. of sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing, etc. and providing fixtures like fan clamps in the RCC floor/ roof slabs wherever necessary without claiming extra, etc., complete complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirements of IS Standards. (No separate payment will be made by the Department for the excess usage of materials).
Perambur
Tondiarpet 1
Vysarpadi
Poonamallee
Perumbakkam
K.K.nagar
Supplying, fabricating and placing in position Mild Steel / Ribbed Tor Steel grills for all RCC works as per design given including cost of steel and G.I. binding wire in all floors etc. complete complying with standard specification. (Contractor has to make his own arrangements for the supply of steel and binding wire)
Perambur
Tondiarpet 1
Vysarpadi
Poonamallee
Perumbakkam
K.K.nagar
Supplying and erecting centering for sides and soffits including necessary supports and strutting up to 3.29 M height for plane surfaces as detailed below in all floors with all cross bracings using Mild Steel sheets of size 90 x 60 cm and 10 BG stiffened with welded Mild Steel angle of size 25mm x 25mm x 3 mm for boarding laid over silver oak joists of size 10cm x 6.50 cm spaced at about 90 cm centre to centre and supported by casurina props of 10cm to 13 cm dia spaced at not more than 75 cm centre to centre etc. complete complying with the standard specification. (Payment for centering shall be given after the concrete is laid
Perambur
For plane surfaces such as RCC floor slab, roof slab, beams, lintels, bed blocks, landing slab, waist slab, portico slabs and beams, etc.
For column footing plinth beam bed blocks templates staircase,steps piers raft beam raft slab etc.,
Tondiarpet 1
Vysarpadi
Poonamallee
Perumbakkam
For plane surfaces such as RCC floor slab, roof slab, beams, lintels, bed blocks, landing slab, waist slab, portico slabs and beams, etc.
For column footing plinth beam bed blocks templates staircase,steps piers raft beam raft slab etc.,
K.K.nagar
For plane surfaces such as RCC floor slab, roof slab, beams, lintels, bed blocks, landing slab, waist slab, portico slabs and beams, etc.
For column footing plinth beam bed blocks templates staircase,steps piers raft beam raft slab etc.,
Providing and laying in position, Standardised Concrete Mix M-25 Grade in accordance with IS:456-2000, using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 350 kg/mᶾ and maximum water cement ratio of 0.50, including admixture (plasticiser / super plasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5.0 cu.m.) 7730 kg. of 20mm machine crushed stone jelly and with about (3.3 cu.m.) 5156 kg. of 10-12mm machine crushed stone jelly and with about (4.79 cu.m.) 7670 kg. of sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing, etc. and providing fixtures like fan clamps in the RCC floor/ roof slabs wherever necessary without claiming extra, etc., complete complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirements of IS Standards. (No separate payment will be made by the Department for the excess usage of materials).
Perambur
foundation and basement
Ground floor up to 4.50 m height
First floor up to 4.50m height
Tondiarpet 1
Vysarpadi
Poonamallee
Perumbakkam
foundation and basement
Ground floor up to 4.50 m height
K.K.nagar
foundation and basement
Ground floor up to 4.50 m height
Providing two legged scaffolding using 15 cm dia casuarinas post of 4 M over all length (3 M Height + 0.5 M Projection + 0.5 M into the Ground) the distance between the two rows being 1.25 M and the spacing of posts being 2.0 M in both the rows with two horizontal posts with 0.5 M. Overlap on either side and braces at 2.0 M Center to center including longitudinal and transverse middle braces to step up and providing a platform with country wood planks of 40 mm thick and 1 M width, etc. in a complete from using coil and nails.
Perambur
Rate for an initial height of 3 M and length of 1 M
For every additional height of 2.5 M Height
Vysarpadi
Rate for an initial height of 3 M and length of 1 M
Perumbakkam
Rate for an initial height of 3 M and length of 1 M
K.K.nagar
Rate for an initial height of 3 M and length of 1 M
Brick Masonry in cement mortar 1:5 (One cement and five sand) in foundations, basement and superstructure walls using second class ground moulded chamber burnt bricks of size 9”x 43/8”x2 3/4” etc., complete complying with standard specifications and drawings and as directed by departmental Engineers. (Derived from S.I. 163) TNBP No. 31.
Perambur
foundation and basement
Ground floor up to 4.50 m height
First floor up to 4.50m height
Tondiarpet 1
Vysarpadi
Poonamallee
Perumbakkam
foundation and basement
Ground floor up to 4.50 m height
K.K.nagar
foundation and basement
Ground floor up to 4.50 m height
Construction of Granular Sub Base by providing close graded material, mixing in a mechanical mix plant at OMC, carriage of mixed material to work site, spreading in uniform layers with motor grader on prepared surface and compacting with vibratory power roller to achieve the desired density, complete as per clause 401
Perambur
Perumbakkam
K.K.nagar
RCC Jolly with 50 mm thick in Cement Concrete 1:2:4 (One of cement two of m sand and four of aggregate) using 20mm thick hard broken stone jelly and river sand including the cost of reinforcements grills and fabrication charges but including moulding, curing finishing charges and fixing in position neatly etc., complete complying with standard specification and as directed by the Departmental officers.
Perambur
Perumbakkam
K.K.nagar
Plastering the walls with Cement Mortar 1:5 (one of cement and five of m sand) - 20 mm thick using the m sand including curing and finishing neatly complying with standard specification and as directed by the departmental officers etc. complete. S.I. 311--TNBP No. 55& 56 (Perambur)
Plastering the walls with Cement Mortar 1:3 (one of cement and three of m sand) - 20 mm thick using the m sand including curing and finishing neatly complying with standard specification and as directed by the departmental officers etc. complete. S.I. 311--TNBP No. 55& 56
Perambur
Tondiarpet 1
Vysarpadi
Poonamallee
Perumbakkam
K.K.nagar
Painting the walls with Two coats with first class quality Plastic Emulsion paint of approved colour over a priming coat including thorough scraping, clean removal of dirt. The rate includes cost of brushes, sand paper, plaster of parries, putty wherever required and neat finishing etc., complete complying with standard specification and as directed by the Departmental Officer (the colour and quality should be got approved by the Executive Engineer before use) S I No 358
Perambur
Tondiarpet 1
Vysarpadi
Poonamallee
Perumbakkam
K.K.nagar
paving the floor and wall with plain ceramic tiles of approved quality,colour and design joint free of size 305*305*6mm thick of approved make.quality and colour in all floors over a base layer of cement mortar 1:3(one cement three m sand)20mm thick and laid straight alignment and pointing neatly with colour cement at the rate of 0.40kg/m2 laid without any air gap in the tiles neatly and fixing in position as per standard specification and as directed by the departmental officers.The colour &quality of tiles should be got approved by the Executive Engineer before use on Work.
Perambur
Tondiarpet 1
Vysarpadi
Poonamallee
Perumbakkam
K.K.nagar
Dadooing quality the wall with First Quality White Glazed Tilessize of approved quality,colour and design joint free of size 150*150*6mm thick of approved make.quality and colour in all floors over a base layer of cement mortar 1:3(one cement three sand)20mm thick and laid straight alignment and pointing neatly with colour cement at the rate of 0.40kg/m2 laid without any air gap in the tiles neatly and fixing in position as per standard specification and as directed by the departmental officers.The colour &quality of tiles should be got approved by the Executive Engineer before use on Work.
Perambur
Tondiarpet 1
Vysarpadi
Poonamallee
Perumbakkam
K.K.nagar
Supplying and fixing in position White / Colour Glazed Model Floor Mounted European Water Closet of best quality and approved make with 100mm “P” or “S” trap connecting with CI pipe of 100mm dia / PVC pipe of 110mm dia, double flapped rigid PVC black seat and seat cover with CP brass hinges including cost of white cement, cement for packing, spun yarn, teak wood plugs, brass screws, etc., including supplying and fixing 10 litres capacity PVC / 12.5 litres capacity porcelin low level flushing tank with a pair of CI brackets, etc., complete with all fittings, such as, 15mm brass ball valve with polythene float with brass handle, union coupling connected by means of 40mm white PVC flush hand using indian adopter joint including all internal fittings, such as, 15mm bras connections, 15mm GM wheel valve, 15mm brass nipple (2 Nos.), 15mm nylon connection, TW plugs, screws and also giving necessary connection to the PVC pipe and painting the CI brackets with 2 coats of approved paint over one coat of red oxide primer, dismantling the masonry and re-doing the dismantled masonry to original condition, etc., complete complying with standard specifications. (The EWC and flushing tank with all accessories should be got approved by the Executive Engineer before use on works)
Perambur
Perumbakkam
K.K.nagar
FRP Door Sutter with FRP Door Frames made out of FRP Sheets of 3mm thick of over all size 65mm x 50mm with rebate suitably reinforced using MS Angle / Flats, cost of holdfasts and Solid Core FRP Shutter Panel of 5mm thick and hollow core frames of 3m wall thickness for styles and rails etc., of sizes specified by Engineers
Perumbakkam
K.K.nagar
PVC Panelled door Shutters Hollow Type - 200mm x 20mm panels with 1mm wall thickness for panels and styles and rails of suitable size with 2mm wall thickness suitably reinforced using MS Angle / Flat including cost of necessary aluminium hinges and other furniture fittings
Perumbakkam
K.K.nagar
Labour charges for fixing the FRF door with and PVC panelled door.chamber cover fixing,bitmen pad fixing.complying with standard specification and as directed by the departmental officers
Perumbakkam
carpenter 1
carpenter 2
mazdoor 1
K.K.nagar
carpenter 1
carpenter 2
mazdoor 1
Supplying colour glazed earthernware wash hand basin of size 550 x 400mm with all accessories such as cast iron brackets, including cost 15mm dia brass CP pillar tap, 32mm dia "B" class GI waste pipe with rubber plug and chain, 15mm dia GM wheel valve, 15mm brass nipple, 15mm dia nylone connection, 15mm dia bross nipples,15mm cp pillar Tap etc complying with complete complying with standard specification and as directed by the departmental officers.
Perumbakkam
K.K.nagar
Supply colour lipped mouth porcelain flat back urinal with all accessories such as 32mm dia bell mouth PVC connection,15mm dia GM Wheel valve,15mmm dia Bclass Gi waste water pipe,15mm dia nylon connection,15mm dia brass nipple .etc. complete complying with standard specifications and as directed by the departmental officers.
Perumbakkam
K.K.nagar
Supplying of PVC / Fiber glass framed 5.5mm thick mirror,Shelf type with Hard boARD BACKING SIZE 600MM X 450MM complete complying with standard specifications and as directed by the departmental officers.
Perumbakkam
K.K.nagar
Labour charges for fixing the wash basin,urinal,mirror complete complying with standard specifications and as directed by the departmental officers.
Perumbakkam
Plumber 1st class
Plumber 2st class
mazdoor 1
K.K.nagar
Plumber 1st class
Plumber 2st class
mazdoor 1
Painting new iron works such as steel doors, windows, ventilators, window bars, balustrades etc., with two coats of best approved first quality and colour of synthetic enamel paint over the existing red oxide priming coat in all floors including cost of priming coat etc., complete complying with standard specification. (The make, quality and colour of paint should be got approved by the Executive Engineer before use on works.) (Perambur)
Weathering course in brick jelly lime concrete using broken brick jelly of size 20mm uniform gauge in pure slaked lime (no sand to be used) to the proportion of brick jelly to lime being 32:12.5 by volume and laid over the RCC roof slab in a single layer of required slope and finished by beating the concrete with wooden beaters of approved pattern, keeping the surface constantly wet by sprinkling lime jaggery water, etc., complete as per standard specification and as directed by the deparmental officers. (Perambur)
Finishing the top of roof with one course of machine pressed tiles of size 230mm x 230mm x 20mm of approved quality set in Cement Mortar 1:3 (One Cement and Three Sand) 12mm thick mixed with water proofing compound conforming to ISS at 2% by weight of cement used and the joints pointed neatly to full depth of tiles with the same cement mortar mixed with red oxide and water proofing compound including curing etc., complete complying with standard specification and as directed by the departmental officers (Perambur)
Supplying of manhole cover SFRC
Perambur
Tondiarpet 1
Vysarpadi
Poonamallee
K.K.nagar
Hire chargesfor JCB including driver beta standard specification and as directed by the departmental officers
Perambur
Tondiarpet 1
Vysarpadi
Poonamallee
K.K.nagar
Labour charges for cleaning the site and cleaning the unwanted things standard specification and as directed by the departmental officers
Perambur
Tondiarpet 1
Vysarpadi
Poonamallee
K.K.nagar
Labour charges for cleaning the debries
Vysarpadi
Perumbakkam
Supply, erection, testing and commissioning of Fire Fighting Application Horizontal Centrifugal Type Pump Rated for 2280 LPM at 70 metres head with Electrical Motor of 60 HP of 415 volt 3 phase connection complete with base plate and accessories. (Make: Kirloskar or Equivalent). The rate inclusive of necessary vibration, bad mounting etc., as per standard method as directed by the Deparmental Officers (Make: Kirloskar)(For 6 Depots)
Supply, installation, testing and commissioning of Diesel Engine Driven Main Fire Pump suitable for automatic operation and consisting of following and complete in all respects as required. a. End suction, top discharge centrifugal pump of cast iron body & bronze impeller with stainless steel shaft, mechanical seal to ensure a minimum pressure of 3.5 kg. / sq. cm at highest and farthest outlet at specified flow of 2280 LPM at 70m head conforming to IS 1520. b. 68 BHP, 1500 RPM water cooled with radiator, diesel engine conforming to relevant BS & IS standard complete. Auto starting mechanism, 12 volts / 24 volts electric starting equipment like self motor, dyanamo, solenoid switches etc. c. 110 litres capacity diesel tank mounted over stand fabricated using 25mm x 25mm x 6mm size MS angle, providing with level indicator, inlet port, outlet port, drain port and diesel return line port and fuel pre-filter, after filter etc. (Make: Kirloskar / Equivalent). d. Exhaust system having flexible metallic mufler, 100mm dia MS heavy pipe extended upto 1m, outside pump house duly insulated with 50mm thick glass wool with 1mm thick aluminium sheet cladding, residential silencer with necessory MS support arrangements from wall or ceiling as per site condition. e. Dash board consisting the instruments like temperature gauge, galvano type DC Ammeter, lubricant oil pressure gauge, ignition switch, emergency stop and all other protection equipment as per specification, stop seleneid for auto stop in the event of fault with audio indications, painted with post office red colour etc., as required. f. 12 V / 24 V storage battery, maintenance free tape, 180 AH rating, MS fabricated common base plate, coupling guard, foundation bolts etc., as required. g. Positioning the diesel engine driven fire pump over cement concrete foundation using suitable size anti-vibration mounting arrangement. All works carried out as per standard methods and as instructed by the manufacturer and as directed by the Departmental Officers. (Make: Kirloskar / Equivalent)(For 6 Depots)
Supply, erection, testing and commissioning Mono Block type Fire Fighting Pressurisation Pump of 180 LPM 110 metres head at 10 HP with suitable base frame including necessary vibration bad mounting etc., including conveying, fixing and incidental charges., etc., complete as per standard specification and as directed by the Departmental Officers. (Make: Kirloskar / Equivalent)(For 6 Depots)
1100 V GRADE POWER / CONTROL CABLES Supplying, laying, testing & commissioning of PVC insulated PVC sheathed, XLPE steel armoured, aluminium / copper conductor, 100v grade power cables.The cables shall be laid in tray / Hume pipe / in trenches/on walls/ floor etc. as required.(For 6 Depots)
3C x 185 Sqmm.Aluminium
3 C x 10Sqmm. Aluminium
12 C x 1.5 Sqmm. Copper
2 C x 2.5 Sqmm. Copper
3.5x50Sqmm Aluminium Armoured
Supply, erection, testing and commissioning offollowing MS ‘C’ Class Heavy Duty Pipe as per IS 1239to withstand a developing pressure of 10 kg. / sq.cm including necessary fittings like MS flange of table ‘E’, elbows, reducers, gaskets, bolt, nuts with washers & joints as per standard method of arc welding, including one coat metal primer and two coat Post Office Red painting including conveyance, all incidental charges, neccessary scaffolding and re-doing the dismantled portions to its original condition wherever found neccessary, etc., complete as per standard specification and as directed by the Departmental Officers. Make: JINDAL / EQUIVALENT (For 6 Depots)
200mm nominal dia
150 mm nominal dia
80 mm nominal dia
50 mm nominal dia
Exhuast pipe for Diesel engine of with mineral wool insulation with aluminum sheet.- M.S. 'B' class pipe 100 mm dia (For 6 Depots)
Supplying, installing, testing and commissioning of C.I. Non-return Valve type with required flanges, nuts, bolts and gaskets etc. complete. (Make Normex)(For 6 Depots)
150 mm nominal dia
80 mm nominal dia
Supplying, fabricating, structural steel supports such as MS channels, angles, flats, rods as required at site with anchor fasteners, clamps, threaded rods, nuts, bolts, washers etc. complete with painting.(For 6 Depots)
Supplying, Installing, testing and commissioning Butterfly valve ( PN 16) steam rising operated type with required flanges, nuts, bolts etc. complete.(Make Normex /Audco/Equivalent)(For 6 Depots)
200mm nominal dia
150mm nominal dia
80mm nominal dia
50mm nominal dia
Supplying, installing, testing and commissioning of Gun metal chrome finished Ball valves with fittings of screwed end type.(Make Zoloto/Equivalent)(For 6 Depots)
25mm dia.
15mm dia
Supply, Installation, Testing & Commissioning of pressure switch(For 6 Depots)
Supply, Installation, Testing & Commissioning of Dial type pressure guage (100mm Industrial type) with necessary nipple & other fittings(For 6 Depots)
Supply, fixing, testing and commissioning of M.S. material Air Vessel Tank of size 150 mm dia x 1000 mm long x 6 mm thickness with necessary inlet & outlet flange, 20 NB brass air release valve, 25 NB drain valve with supporting leg and etc., complete as per detailed specification.(For 6 Depots)
Wrapping and coating anti-corrosive treatment for the following under ground 150 NB MS pipe having one coat of anti-corrosive metal primer, one layer of asphalt tar tape wound over the MS Pipe as per standard methods as per standard specifications and as directed by the Departmental Officers.(Reputed make)(For 6 Depots)
150 NB Y strainer
80 NB Y strainer
Supply, erection, testing and commissioning of following MS ‘C’ Class Heavy Duty Pipe as per IS 1239 to withstand a developing pressure of 10 kg. / sq.cm including necessary fittings like MS flange of table ‘E’, elbows, reducers, gaskets, bolt, nuts with washers &joints as per standard method of arc welding, including one coat metal primer and two coat Post Office Red painting including conveyance, all incidental charges, neccessary scaffolding and re-doing the dismantled portions to its original condition wherever found neccessary, etc., complete as per standard specification and as directed by the Departmental Officers. Make: JINDAL / EQUIVALENT (For 6 Depots)
150mm nominal dia
80mm nominal dia
Supplying, Installing, testing and commissioning Butterfly valve( PN 16) steam rising operated type with required flanges, nuts, bolts etc. complete.(Make Audco /Equivalent)(For 6 Depots) (150mm nominal dia)
Supplying, installing and commissioning of fire brigade inlet inlet connection of 4 way with 4 nos. 63 mm dia. built - in Gun metal Non- return valves instantaneous coupling type arranged on 150 mm dia. Pipe manifold and connected to wet riser main. Qouted rate shall be included with Butterfly valve, check valve and M.S. cabinet of suitable size with mounting supports etc. complete.(For 6 Depots)
Supplying, installing, testing and commissioning of yard hydrant (Stand post shall measure under piping item) comprising of ;(For 6 Depots)
Single headed SS hydrant valve as per IS: 5290 (Type A). The valves should be complete with hand wheels, quick coupling connections, springs and blank caps.(Make Omex/karter/safepro/Equivalent).(For 6 Depots)
1 lengths of 15 M long, 63mm dia RRL hose with couplings and Hoses shall be rolled & hug tosuitable M.S. structural support fixed inside the Fire duct wall.RRL Hose as per IS: 636.(Make Omex/karter/safepro/Equivalent).(For 6 Depots)
1 no. SS branch pipe with nozzle, As per IS: 903.(For 6 Depots)
Supply of Fire Fighting Application MS Hose Box to keep two number of hoses and 1 No. of branch pipe with nozzle having proper glass window type double door with universe open key, painted inside white and outside Post Office Red. Near every hydrant point including conveyance, all incidental charges, neccessary scaffolding and re-doing the dismantled portions to its original condition wherever found neccessary, etc., complete as per standard specification and as directed by the Departmental Officers.(Reputed make).(For 6 Depots)
Supplying and fixing approved make 25mm dia. With automatic air release valve with unions etc. complete.(For 6 Depots)
Basic total
LOTUS CONSTRUCTION (BID ID -1189642)
stage.html
html • 0.05 MB
tech_bid_open.pdf
tech_eval.pdf
fin_bid_open.pdf
boq_comp_chart.xlsx
xlsx
fin_eval.pdf
aoc.pdf
Tap a document below to read it instantly. You can also download everything as a ZIP if you prefer.
details.html
html • 0.03 MB
Download all tender documents and submit your bid
Disclaimer: TenderKart has made every reasonable effort to ensure that the information on this page is accurate and authentic, however it cannot be held liable for any third-party claims or losses or any damages. TenderKart makes no warranty, expressed or implied, as to the results obtained from the use of this information. If you notice any error or omission, please let us know at .